# Copyright 2016-2022 Bitmain Technologies Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

""" The extend base layer

Which include some commom operations
"""
from abc import ABCMeta, abstractmethod
import six
from ...utils.timer import Timer


@six.add_metaclass(ABCMeta)
class BaseLayer(object):
  """Contruct a BaseLayer
  """

  def __init__(self):
    self.time = Timer()

  @abstractmethod
  def forward(self):
    """extend layer forward
    """
    raise NotImplementedError
